I haven't seen it yet, going to Adelaide premier on Fri, but looking at all the previews....... WHERE ARE THE AUSSIE RIDERS!!!!!!! I am feeling kinda disappointed about that
Also looking at the teaser, the off axis flips, what I am assuming you are calling corkscrews, are not dialed. In an Aussie movie Rennie gets one past 60 degrees! He has them dialed.
A dodgy off axis flip, looks crap compare to a dialed back flip, but a dialed off axis flip looks just as dialed as a back flip. I may be wrong by this, but when you say corkscrew, I am thinking a lincoln flip. And as far as I know ther ehas only ever been one lincoln flip ever landed and that was at the Sea Otter DJ comp, forget who did it. A lincoln flip is the skiing term for a barrel roll basically.